Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Reexamination Certificate
2006-10-24
2006-10-24
Issing, Gregory C. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
C342S427000
Reexamination Certificate
active
07126532
ABSTRACT:
The present invention relates to a signal combining apparatus of the active phase array antenna. The signal combining apparatus includes a plurality of signal distributors for receiving a signal from an antenna array element located at boundary between sub antenna arrays and distributing the signal to the sub antenna arrays, which include the antenna array element; and a plurality of signal combiners for combining the signal from a plurality of antenna elements and the signal distributors in corresponding sub antenna array. The present invention can prevent degrade a performance caused by sudden phase difference and can effectively receive tracing signal by passing a signal of antenna element located at boundary between sub arrays antenna to both signal combiners corresponding to both of sub antenna arrays.
REFERENCES:
patent: 3803625 (1974-04-01), Nemit
patent: 6650281 (2003-11-01), Caille et al.
patent: 1999-0053980 (1999-07-01), None
patent: 1019990248400 (1999-12-01), None
patent: 1020000060658 (2000-10-01), None
patent: 1020010063792 (2001-07-01), None
Jeon Soon Ik
Park Ung Hee
Yun Jae Seung
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Issing Gregory C.
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